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londonphd

2013-Mar-23 17:59 UTC

[R] panel model hausman test

Hi,

I am trying to run panel regression using Fixed and Random effects models. I
am getting the following error message after running the hausman test 
>Fmodel=plm(gdp ~ labour+gfcf+oil+coal+gas+hydroel+nuclear+rnwable, model
"within", data = new.frame,index = c("id"))  
 >Rmodel=plm(gdp ~ labour+gfcf+oil+coal+gas+hydroel+nuclear+rnwable, model
"random", data = new.frame,index =
c("id"),random.method="amemiya")
  >phtest(Fmodel,Rmodel)
>Error in solve.default(dvcov) :   system is computationally singular: reciprocal condition number 1.76944e-20

I would really appreciate if you could help 




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R help - Mar 2013 - panel model hausman test

[R] panel model hausman test